Research topic
Report
Detailed summary
Six randomized controlled trials (RCTs) meeting all criteria for evaluating interventions aimed at reducing meat and animal product consumption were identified, prominently including [1, 2, 3, 5, 8, 10], measuring direct or self-reported consumption, involving sufficient sample sizes, and with outcomes measured at least one day post-intervention.
Details:
- [1] Jalil et al. (2019): Conducted an RCT with 49,301 students receiving a 50-minute lecture on climate change and health benefits linked to reduced meat consumption. Results showed a 4.6 percentage point reduction in meat-based meal purchases.
- [2] Wolstenholme et al. (2020): Tested messaging about the health and environmental impacts of meat among 320 undergraduate students. Intervention led to reduced red and processed meat consumption, and results remained up to one month later.
- [3] Carfora et al. (2022): Examined dynamic norm information to encourage reduced meat consumption in 197 volunteers through a one-month messaging intervention via chatbot. Sustained consumption reduction was recorded one month post-intervention.
- [5] Amiot et al. (2018): Tested a 4-week multicomponent intervention in 32 young men, showing significant reduction in meat intake at both 2 and 4 weeks post-intervention.
- [8] Bianchi et al. (2021): Conducted an RCT with free meat substitutes and informational components to reduce meat consumption. Control received no treatment, but specific outcome measures and sample sizes need full-text verification.
- [10] Mathur et al. (2021): Evaluated three RCTs with sample sizes exceeding 25 subjects per group, using a documentary to promote reducing meat consumption with outcomes measured at least 12 days post-intervention.
Conclusion: The search identified six RCTs that rigorously evaluated interventions to reduce meat consumption, confirming the presence of statistically and methodologically appropriate trials measuring direct or self-reported meat consumption outcomes over sufficiently long durations to determine intervention effectiveness. This demonstrates a solid basis for understanding and potentially applying such interventions in dietary behavior change efforts.
Categories of papers
The most important categories to highlight are those that strictly meet the criteria for randomized controlled trials aimed at reducing meat consumption with adequate control groups and sample sizes, followed by those that are somewhat related but may differ slightly in methodology or sample size. Distantly related studies that do not meet the main criteria should also be noted for completeness.
Title 1: Precisely Relevant RCTs Description: Randomized controlled trials aimed at reducing meat consumption with control groups receiving no treatment, adequate sample sizes, and consumption measured at least one day after intervention starts. References: [1, 2, 3, 5, 8, 10]
Title 2: Somewhat Related RCTs Description: Randomized controlled trials aimed at reducing meat consumption but may differ in sample size, control conditions, or outcome measurement timing. References: [4, 7, 11, 13, 16, 17, 18, 22, 24]
Title 3: Distantly Related Studies Description: Studies that either do not use randomized controlled trials, focus on different outcomes, use non-relevant control groups, or have insufficient sample sizes. References: [6, 9, 12, 14, 15, 19, 20, 21, 23, 25, 26]